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<tr class="t-nv"><td colspan="5"> <a href="streambuf.html" title="cpp/header/streambuf"><tt>&lt;streambuf&gt;</tt></a>
</td></tr>
<tr class="t-nv"><td colspan="5"> <a href="istream.html" title="cpp/header/istream"><tt>&lt;istream&gt;</tt></a>
</td></tr>
<tr class="t-nv"><td colspan="5"> <a href="ostream.html" title="cpp/header/ostream"><tt>&lt;ostream&gt;</tt></a>
</td></tr>
</table></div></td>
<td><div><table class="t-nv-begin" cellpadding="0" style="">
<tr class="t-nv"><td colspan="5"> <a href="iomanip.html" title="cpp/header/iomanip"><tt>&lt;iomanip&gt;</tt></a>
</td></tr>
<tr class="t-nv"><td colspan="5"> <a href="sstream.html" title="cpp/header/sstream"><tt>&lt;sstream&gt;</tt></a>
</td></tr>
<tr class="t-nv"><td colspan="5"> <a href="fstream.html" title="cpp/header/fstream"><tt>&lt;fstream&gt;</tt></a>
</td></tr>
<tr class="t-nv"><td colspan="5"> <a href="cstdio.html" title="cpp/header/cstdio"><tt>&lt;cstdio&gt;</tt></a>
</td></tr>
<tr class="t-nv"><td colspan="5"> <a href="cinttypes.html" title="cpp/header/cinttypes"><tt>&lt;cinttypes&gt;</tt></a>
</td></tr>
</table></div></td>
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<tr class="t-nv-h1"><td colspan="5"> Regular expressions</td></tr>
<tr class="t-nv-col-table"><td><div><table class="t-nv-begin" cellpadding="0" style="">
<tr class="t-nv"><td colspan="5"> <a href="regex.html" title="cpp/header/regex"><tt>&lt;regex&gt;</tt></a>
</td></tr>
</table></div></td></tr>
<tr class="t-nv-h1"><td colspan="5"> Thread support</td></tr>
<tr class="t-nv-col-table">
<td><div><table class="t-nv-begin" cellpadding="0" style="">
<tr class="t-nv"><td colspan="5"> <a href="thread.html" title="cpp/header/thread"><tt>&lt;thread&gt;</tt></a>
</td></tr>
<tr class="t-nv"><td colspan="5"> <a href="mutex.html" title="cpp/header/mutex"><tt>&lt;mutex&gt;</tt></a>
</td></tr>
<tr class="t-nv"><td colspan="5"> <a href="atomic.html" title="cpp/header/atomic"><tt>&lt;atomic&gt;</tt></a>
</td></tr>
</table></div></td>
<td><div><table class="t-nv-begin" cellpadding="0" style="">
<tr class="t-nv"><td colspan="5"> <a href="shared_mutex.html" title="cpp/header/shared mutex"><tt>&lt;shared_mutex&gt;</tt></a>
</td></tr>
<tr class="t-nv"><td colspan="5"> <a href="condition_variable.html" title="cpp/header/condition variable"><tt>&lt;condition_variable&gt;</tt></a>
</td></tr>
<tr class="t-nv"><td colspan="5"> <a href="future.html" title="cpp/header/future"><tt>&lt;future&gt;</tt></a>
</td></tr>
</table></div></td>
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</table></div>
</div>
<div></div>
</div></div>
</div>
<div class="t-navbar-sep"> </div>
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<p>This header is part of the <a href="../string.html" title="cpp/string">strings</a> library.
</p>
<table id="toc" class="toc"><tr><td>
<div id="toctitle"><h2>Contents</h2></div>
<ul>
<li class="toclevel-1 tocsection-1"><a href="string.html%23Includes"><span class="tocnumber">1</span> <span class="toctext">Includes</span></a></li>
<li class="toclevel-1 tocsection-2"><a href="string.html%23Classes"><span class="tocnumber">2</span> <span class="toctext">Classes</span></a></li>
<li class="toclevel-1 tocsection-3">
<a href="string.html%23Functions"><span class="tocnumber">3</span> <span class="toctext">Functions</span></a>
<ul>
<li class="toclevel-2"><a href="string.html%23Input.2Foutput"><span class="tocnumber">3.1</span> <span class="toctext">Input/output</span></a></li>
<li class="toclevel-2"><a href="string.html%23Numeric_conversions"><span class="tocnumber">3.2</span> <span class="toctext">Numeric conversions</span></a></li>
</ul>
</li>
<li class="toclevel-1 tocsection-4"><a href="string.html%23Synopsis"><span class="tocnumber">4</span> <span class="toctext">Synopsis</span></a></li>
</ul>
</td></tr></table>
<h3>
<span class="editsection">[<a href="http%3A//en.cppreference.com/mwiki/index.php" title="Edit section: Includes">edit</a>]</span> <span class="mw-headline" id="Includes">Includes</span>
</h3>
<table class="t-dsc-begin">

<tr class="t-dsc-sep">
<td colspan="2">
</td>
</tr>
<tr class="t-dsc">
<td>  <a href="initializer_list.html" title="cpp/header/initializer list"><tt>&lt;initializer_list&gt;</tt></a>
</td>
<td>  <span class="t-mark-rev t-since-cxx11">(since C++11)</span>
</td>
</tr>

</table>
<h3>
<span class="editsection">[<a href="http%3A//en.cppreference.com/mwiki/index.php" title="Edit section: Classes">edit</a>]</span> <span class="mw-headline" id="Classes">Classes</span>
</h3>
<table class="t-dsc-begin">

<tr class="t-dsc-sep">
<td colspan="2">
</td>
</tr>
<tr class="t-dsc-hitem">
<td>  Name
</td>
<td>  Description
</td>
</tr>


<tr class="t-dsc-sep">
<td colspan="2">
</td>
</tr>
<tr class="t-dsc">
<td>  <span class="t-lc"><a href="../string/char_traits.html" title="cpp/string/char traits">std::char_traits</a></span>
</td>
<td>  Class Template which describes properties of a character type <span class="t-mark">(class template)</span>
</td>
</tr>


<tr class="t-dsc-sep">
<td colspan="2">
</td>
</tr>
<tr class="t-dsc">
<td>  <span class="t-c"><span class="mw-geshi cpp source-cpp"><a href="../string/char_traits.html"><span class="kw1064">std::<span class="me2">char_traits</span></span></a><span class="sy1">&lt;</span><span class="kw4">char</span><span class="sy1">&gt;</span></span></span>
</td>
<td>  <span class="t-mark">(class template specialization)</span>
</td>
</tr>


<tr class="t-dsc-sep">
<td colspan="2">
</td>
</tr>
<tr class="t-dsc">
<td>  <span class="t-c"><span class="mw-geshi cpp source-cpp"><a href="../string/char_traits.html"><span class="kw1064">std::<span class="me2">char_traits</span></span></a><span class="sy1">&lt;</span><span class="kw4">wchar_t</span><span class="sy1">&gt;</span></span></span>
</td>
<td>  <span class="t-mark">(class template specialization)</span>
</td>
</tr>


<tr class="t-dsc-sep">
<td colspan="2">
</td>
</tr>
<tr class="t-dsc">
<td>  <span class="t-c"><span class="mw-geshi cpp source-cpp"><a href="../string/char_traits.html"><span class="kw1064">std::<span class="me2">char_traits</span></span></a><span class="sy1">&lt;</span><span class="kw4">char16_t</span><span class="sy1">&gt;</span></span></span> <span class="t-mark-rev t-since-cxx11">(C++11)</span>
</td>
<td>  <span class="t-mark">(class template specialization)</span>
</td>
</tr>


<tr class="t-dsc-sep">
<td colspan="2">
</td>
</tr>
<tr class="t-dsc">
<td>  <span class="t-c"><span class="mw-geshi cpp source-cpp"><a href="../string/char_traits.html"><span class="kw1064">std::<span class="me2">char_traits</span></span></a><span class="sy1">&lt;</span><span class="kw4">char32_t</span><span class="sy1">&gt;</span></span></span> <span class="t-mark-rev t-since-cxx11">(C++11)</span>
</td>
<td>  <span class="t-mark">(class template specialization)</span>
</td>
</tr>



<tr class="t-dsc-sep">
<td colspan="2">
</td>
</tr>
<tr class="t-dsc">
<td>  <span class="t-lc"><a href="../string/basic_string.html" title="cpp/string/basic string">std::basic_string</a></span>
</td>
<td>  Class template representing a text string object <span class="t-mark">(class template)</span>
</td>
</tr>


<tr class="t-dsc-sep">
<td colspan="2">
</td>
</tr>
<tr class="t-dsc">
<td>  <span class="t-lc"><a href="../string/basic_string.html" title="cpp/string/basic string">std::string</a></span>
</td>
<td>  <span class="t-c"><span class="mw-geshi cpp source-cpp"><a href="../string/basic_string.html"><span class="kw1043">std::<span class="me2">basic_string</span></span></a><span class="sy1">&lt;</span><span class="kw4">char</span><span class="sy1">&gt;</span></span></span> <span class="t-mark">(typedef)</span>
</td>
</tr>


<tr class="t-dsc-sep">
<td colspan="2">
</td>
</tr>
<tr class="t-dsc">
<td>  <span class="t-lc"><a href="../string/basic_string.html" title="cpp/string/basic string">std::wstring</a></span>
</td>
<td>  <span class="t-c"><span class="mw-geshi cpp source-cpp"><a href="../string/basic_string.html"><span class="kw1043">std::<span class="me2">basic_string</span></span></a><span class="sy1">&lt;</span><span class="kw4">wchar_t</span><span class="sy1">&gt;</span></span></span> <span class="t-mark">(typedef)</span>
</td>
</tr>


<tr class="t-dsc-sep">
<td colspan="2">
</td>
</tr>
<tr class="t-dsc">
<td>  <span class="t-lc"><a href="../string/basic_string.html" title="cpp/string/basic string">std::u16string</a></span> <span class="t-mark-rev t-since-cxx11">(C++11)</span>
</td>
<td>  <span class="t-c"><span class="mw-geshi cpp source-cpp"><a href="../string/basic_string.html"><span class="kw1043">std::<span class="me2">basic_string</span></span></a><span class="sy1">&lt;</span><span class="kw4">char16_t</span><span class="sy1">&gt;</span></span></span>  <span class="t-mark">(typedef)</span>
</td>
</tr>


<tr class="t-dsc-sep">
<td colspan="2">
</td>
</tr>
<tr class="t-dsc">
<td>  <span class="t-lc"><a href="../string/basic_string.html" title="cpp/string/basic string">std::u32string</a></span> <span class="t-mark-rev t-since-cxx11">(C++11)</span>
</td>
<td>  <span class="t-c"><span class="mw-geshi cpp source-cpp"><a href="../string/basic_string.html"><span class="kw1043">std::<span class="me2">basic_string</span></span></a><span class="sy1">&lt;</span><span class="kw4">char32_t</span><span class="sy1">&gt;</span></span></span> <span class="t-mark">(typedef)</span>
</td>
</tr>



<tr class="t-dsc-sep">
<td colspan="2">
</td>
</tr>
<tr class="t-dsc">
<td>  <span class="t-c"><span class="mw-geshi cpp source-cpp"><a href="../utility/hash.html"><span class="kw918">std::<span class="me2">hash</span></span></a><span class="sy1">&lt;</span><a href="../string/basic_string.html"><span class="kw1045">std::<span class="me2">string</span></span></a><span class="sy1">&gt;</span></span></span> <span class="t-mark-rev t-since-cxx11">(C++11)</span>
</td>
<td>  <span class="t-mark">(class template specialization)</span>
</td>
</tr>


<tr class="t-dsc-sep">
<td colspan="2">
</td>
</tr>
<tr class="t-dsc">
<td>  <span class="t-c"><span class="mw-geshi cpp source-cpp"><a href="../utility/hash.html"><span class="kw918">std::<span class="me2">hash</span></span></a><span class="sy1">&lt;</span><a href="../string/basic_string.html"><span class="kw1049">std::<span class="me2">u16string</span></span></a><span class="sy1">&gt;</span></span></span> <span class="t-mark-rev t-since-cxx11">(C++11)</span>
</td>
<td>  <span class="t-mark">(class template specialization)</span>
</td>
</tr>


<tr class="t-dsc-sep">
<td colspan="2">
</td>
</tr>
<tr class="t-dsc">
<td>  <span class="t-c"><span class="mw-geshi cpp source-cpp"><a href="../utility/hash.html"><span class="kw918">std::<span class="me2">hash</span></span></a><span class="sy1">&lt;</span><a href="../string/basic_string.html"><span class="kw1051">std::<span class="me2">u32string</span></span></a><span class="sy1">&gt;</span></span></span> <span class="t-mark-rev t-since-cxx11">(C++11)</span>
</td>
<td>  <span class="t-mark">(class template specialization)</span>
</td>
</tr>


<tr class="t-dsc-sep">
<td colspan="2">
</td>
</tr>
<tr class="t-dsc">
<td>  <span class="t-c"><span class="mw-geshi cpp source-cpp"><a href="../utility/hash.html"><span class="kw918">std::<span class="me2">hash</span></span></a><span class="sy1">&lt;</span><a href="../string/basic_string.html"><span class="kw1047">std::<span class="me2">wstring</span></span></a><span class="sy1">&gt;</span></span></span>  <span class="t-mark-rev t-since-cxx11">(C++11)</span>
</td>
<td>  <span class="t-mark">(class template specialization)</span>
</td>
</tr>

</table>
<h3>
<span class="editsection">[<a href="http%3A//en.cppreference.com/mwiki/index.php" title="Edit section: Functions">edit</a>]</span> <span class="mw-headline" id="Functions">Functions</span>
</h3>
<table class="t-dsc-begin">

<tr class="t-dsc-sep">
<td colspan="2">
</td>
</tr>
<tr class="t-dsc">
<td>  <div class="t-dsc-member-div"><div><a href="../string/basic_string/operator%2B.html" title="cpp/string/basic string/operator+"> <span class="t-lines"><span>operator+</span></span></a></div></div>
</td>
<td>   concatenates two strings or a string and a char  <br> <span class="t-mark">(function template)</span> 
</td>
</tr>

<tr class="t-dsc-sep">
<td colspan="2">
</td>
</tr>
<tr class="t-dsc">
<td>  <div class="t-dsc-member-div"><div><a href="../string/basic_string/operator_cmp.html" title="cpp/string/basic string/operator cmp"> <span class="t-lines"><span>operator==</span><span>operator!=</span><span>operator&lt;</span><span>operator&gt;</span><span>operator&lt;=</span><span>operator&gt;=</span></span></a></div></div>
</td>
<td>   lexicographically compares two strings  <br> <span class="t-mark">(function template)</span> 
</td>
</tr>

<tr class="t-dsc-sep">
<td colspan="2">
</td>
</tr>
<tr class="t-dsc">
<td>  <div class="t-dsc-member-div"><div><a href="../string/basic_string/swap2.html" title="cpp/string/basic string/swap2"> <span class="t-lines"><span>std::swap<span class="t-dsc-small">(std::basic_string)</span></span></span></a></div></div>
</td>
<td>   specializes the <span class="t-lc"><a href="../algorithm/swap.html" title="cpp/algorithm/swap">std::swap</a></span> algorithm <br> <span class="t-mark">(function template)</span> 
</td>
</tr>


<tr>
<td colspan="2"> <h5> <span class="mw-headline" id="Input.2Foutput">  Input/output </span>
</h5>
</td>
</tr>

<tr class="t-dsc-sep">
<td colspan="2">
</td>
</tr>
<tr class="t-dsc">
<td>  <div class="t-dsc-member-div"><div><a href="../string/basic_string/operator_ltltgtgt.html" title="cpp/string/basic string/operator ltltgtgt"> <span class="t-lines"><span>operator&lt;&lt;</span><span>operator&gt;&gt;</span></span></a></div></div>
</td>
<td>   performs stream input and output on strings  <br> <span class="t-mark">(function template)</span> 
</td>
</tr>

<tr class="t-dsc-sep">
<td colspan="2">
</td>
</tr>
<tr class="t-dsc">
<td>  <div class="t-dsc-member-div"><div><a href="../string/basic_string/getline.html" title="cpp/string/basic string/getline"> <span class="t-lines"><span>getline</span></span></a></div></div>
</td>
<td>   read data from an I/O stream into a string <br> <span class="t-mark">(function)</span> 
</td>
</tr>


<tr>
<td colspan="2"> <h5> <span class="mw-headline" id="Numeric_conversions">  Numeric conversions </span>
</h5>
</td>
</tr>

<tr class="t-dsc-sep">
<td colspan="2">
</td>
</tr>
<tr class="t-dsc">
<td>  <div class="t-dsc-member-div">
<div><a href="../string/basic_string/stol.html" title="cpp/string/basic string/stol"> <span class="t-lines"><span>stoi</span><span>stol</span><span>stoll</span></span></a></div>
<div><span class="t-lines"><span><span class="t-mark-rev t-since-cxx11">(C++11)</span></span><span><span class="t-mark-rev t-since-cxx11">(C++11)</span></span><span><span class="t-mark-rev t-since-cxx11">(C++11)</span></span></span></div>
</div>
</td>
<td>   converts a string to a signed integer  <br> <span class="t-mark">(function)</span> 
</td>
</tr>

<tr class="t-dsc-sep">
<td colspan="2">
</td>
</tr>
<tr class="t-dsc">
<td>  <div class="t-dsc-member-div">
<div><a href="../string/basic_string/stoul.html" title="cpp/string/basic string/stoul"> <span class="t-lines"><span>stoul</span><span>stoull</span></span></a></div>
<div><span class="t-lines"><span><span class="t-mark-rev t-since-cxx11">(C++11)</span></span><span><span class="t-mark-rev t-since-cxx11">(C++11)</span></span></span></div>
</div>
</td>
<td>   converts a string to an unsigned integer  <br> <span class="t-mark">(function)</span> 
</td>
</tr>

<tr class="t-dsc-sep">
<td colspan="2">
</td>
</tr>
<tr class="t-dsc">
<td>  <div class="t-dsc-member-div">
<div><a href="../string/basic_string/stof.html" title="cpp/string/basic string/stof"> <span class="t-lines"><span>stof</span><span>stod</span><span>stold</span></span></a></div>
<div><span class="t-lines"><span><span class="t-mark-rev t-since-cxx11">(C++11)</span></span><span><span class="t-mark-rev t-since-cxx11">(C++11)</span></span><span><span class="t-mark-rev t-since-cxx11">(C++11)</span></span></span></div>
</div>
</td>
<td>   converts a string to a floating point value  <br> <span class="t-mark">(function)</span> 
</td>
</tr>

<tr class="t-dsc-sep">
<td colspan="2">
</td>
</tr>
<tr class="t-dsc">
<td>  <div class="t-dsc-member-div">
<div><a href="../string/basic_string/to_string.html" title="cpp/string/basic string/to string"> <span class="t-lines"><span>to_string</span></span></a></div>
<div><span class="t-lines"><span><span class="t-mark-rev t-since-cxx11">(C++11)</span></span></span></div>
</div>
</td>
<td>   converts an integral or floating point value to <code>string</code>  <br> <span class="t-mark">(function)</span> 
</td>
</tr>

<tr class="t-dsc-sep">
<td colspan="2">
</td>
</tr>
<tr class="t-dsc">
<td>  <div class="t-dsc-member-div">
<div><a href="../string/basic_string/to_wstring.html" title="cpp/string/basic string/to wstring"> <span class="t-lines"><span>to_wstring</span></span></a></div>
<div><span class="t-lines"><span><span class="t-mark-rev t-since-cxx11">(C++11)</span></span></span></div>
</div>
</td>
<td>   converts an integral or floating point value to <code>wstring</code>  <br> <span class="t-mark">(function)</span> 
</td>
</tr>
</table>
<p><br>
</p>
<h3>
<span class="editsection">[<a href="http%3A//en.cppreference.com/mwiki/index.php" title="Edit section: Synopsis">edit</a>]</span> <span class="mw-headline" id="Synopsis">Synopsis</span>
</h3>
<div dir="ltr" class="mw-geshi" style="text-align: left;"><div class="cpp source-cpp"><pre class="de1"><span class="co2">#include &lt;initializer_list&gt;</span>
 
<span class="kw1">namespace</span> std <span class="br0">{</span>
 
    <span class="co1">// character traits:</span>
    <span class="kw1">template</span><span class="sy1">&lt;</span><span class="kw1">class</span> charT<span class="sy1">&gt;</span> <span class="kw1">struct</span> char_traits<span class="sy4">;</span>
    <span class="kw1">template</span> <span class="sy1">&lt;&gt;</span> <span class="kw1">struct</span> char_traits<span class="sy1">&lt;</span><span class="kw4">char</span><span class="sy1">&gt;</span><span class="sy4">;</span>
    <span class="kw1">template</span> <span class="sy1">&lt;&gt;</span> <span class="kw1">struct</span> char_traits<span class="sy1">&lt;</span><span class="kw4">char16_t</span><span class="sy1">&gt;</span><span class="sy4">;</span>
    <span class="kw1">template</span> <span class="sy1">&lt;&gt;</span> <span class="kw1">struct</span> char_traits<span class="sy1">&lt;</span><span class="kw4">char32_t</span><span class="sy1">&gt;</span><span class="sy4">;</span>
    <span class="kw1">template</span> <span class="sy1">&lt;&gt;</span> <span class="kw1">struct</span> char_traits<span class="sy1">&lt;</span><span class="kw4">wchar_t</span><span class="sy1">&gt;</span><span class="sy4">;</span>
 
    <span class="co1">// basic_string:</span>
    <span class="kw1">template</span><span class="sy1">&lt;</span><span class="kw1">class</span> charT, <span class="kw1">class</span> traits <span class="sy1">=</span> char_traits<span class="sy1">&lt;</span>charT<span class="sy1">&gt;</span>,
        <span class="kw1">class</span> Allocator <span class="sy1">=</span> allocator<span class="sy1">&lt;</span>charT<span class="sy1">&gt;</span> <span class="sy1">&gt;</span>
            <span class="kw1">class</span> basic_string<span class="sy4">;</span>
 
    <span class="kw1">template</span><span class="sy1">&lt;</span><span class="kw1">class</span> charT, <span class="kw1">class</span> traits, <span class="kw1">class</span> Allocator<span class="sy1">&gt;</span>
        basic_string<span class="sy1">&lt;</span>charT,traits,Allocator<span class="sy1">&gt;</span>
            operator<span class="sy2">+</span><span class="br0">(</span><span class="kw4">const</span> basic_string<span class="sy1">&lt;</span>charT,traits,Allocator<span class="sy1">&gt;</span><span class="sy3">&amp;</span> lhs,
                    <span class="kw4">const</span> basic_string<span class="sy1">&lt;</span>charT,traits,Allocator<span class="sy1">&gt;</span><span class="sy3">&amp;</span> rhs<span class="br0">)</span><span class="sy4">;</span>
    <span class="kw1">template</span><span class="sy1">&lt;</span><span class="kw1">class</span> charT, <span class="kw1">class</span> traits, <span class="kw1">class</span> Allocator<span class="sy1">&gt;</span>
        basic_string<span class="sy1">&lt;</span>charT,traits,Allocator<span class="sy1">&gt;</span>
            operator<span class="sy2">+</span><span class="br0">(</span>basic_string<span class="sy1">&lt;</span>charT,traits,Allocator<span class="sy1">&gt;</span><span class="sy3">&amp;&amp;</span> lhs,
                    <span class="kw4">const</span> basic_string<span class="sy1">&lt;</span>charT,traits,Allocator<span class="sy1">&gt;</span><span class="sy3">&amp;</span> rhs<span class="br0">)</span><span class="sy4">;</span>
    <span class="kw1">template</span><span class="sy1">&lt;</span><span class="kw1">class</span> charT, <span class="kw1">class</span> traits, <span class="kw1">class</span> Allocator<span class="sy1">&gt;</span>
        basic_string<span class="sy1">&lt;</span>charT,traits,Allocator<span class="sy1">&gt;</span>
            operator<span class="sy2">+</span><span class="br0">(</span><span class="kw4">const</span> basic_string<span class="sy1">&lt;</span>charT,traits,Allocator<span class="sy1">&gt;</span><span class="sy3">&amp;</span> lhs,
                    basic_string<span class="sy1">&lt;</span>charT,traits,Allocator<span class="sy1">&gt;</span><span class="sy3">&amp;&amp;</span> rhs<span class="br0">)</span><span class="sy4">;</span>
    <span class="kw1">template</span><span class="sy1">&lt;</span><span class="kw1">class</span> charT, <span class="kw1">class</span> traits, <span class="kw1">class</span> Allocator<span class="sy1">&gt;</span>
        basic_string<span class="sy1">&lt;</span>charT,traits,Allocator<span class="sy1">&gt;</span>
            operator<span class="sy2">+</span><span class="br0">(</span>basic_string<span class="sy1">&lt;</span>charT,traits,Allocator<span class="sy1">&gt;</span><span class="sy3">&amp;&amp;</span> lhs,
                    basic_string<span class="sy1">&lt;</span>charT,traits,Allocator<span class="sy1">&gt;</span><span class="sy3">&amp;&amp;</span> rhs<span class="br0">)</span><span class="sy4">;</span>
    <span class="kw1">template</span><span class="sy1">&lt;</span><span class="kw1">class</span> charT, <span class="kw1">class</span> traits, <span class="kw1">class</span> Allocator<span class="sy1">&gt;</span>
        basic_string<span class="sy1">&lt;</span>charT,traits,Allocator<span class="sy1">&gt;</span>
            operator<span class="sy2">+</span><span class="br0">(</span><span class="kw4">const</span> charT<span class="sy2">*</span> lhs,
                    <span class="kw4">const</span> basic_string<span class="sy1">&lt;</span>charT,traits,Allocator<span class="sy1">&gt;</span><span class="sy3">&amp;</span> rhs<span class="br0">)</span><span class="sy4">;</span>
    <span class="kw1">template</span><span class="sy1">&lt;</span><span class="kw1">class</span> charT, <span class="kw1">class</span> traits, <span class="kw1">class</span> Allocator<span class="sy1">&gt;</span>
        basic_string<span class="sy1">&lt;</span>charT,traits,Allocator<span class="sy1">&gt;</span>
            operator<span class="sy2">+</span><span class="br0">(</span><span class="kw4">const</span> charT<span class="sy2">*</span> lhs,
                    basic_string<span class="sy1">&lt;</span>charT,traits,Allocator<span class="sy1">&gt;</span><span class="sy3">&amp;&amp;</span> rhs<span class="br0">)</span><span class="sy4">;</span>
    <span class="kw1">template</span><span class="sy1">&lt;</span><span class="kw1">class</span> charT, <span class="kw1">class</span> traits, <span class="kw1">class</span> Allocator<span class="sy1">&gt;</span>
        basic_string<span class="sy1">&lt;</span>charT,traits,Allocator<span class="sy1">&gt;</span>
            operator<span class="sy2">+</span><span class="br0">(</span>charT lhs, <span class="kw4">const</span> basic_string<span class="sy1">&lt;</span>charT,traits,Allocator<span class="sy1">&gt;</span><span class="sy3">&amp;</span> rhs<span class="br0">)</span><span class="sy4">;</span>
    <span class="kw1">template</span><span class="sy1">&lt;</span><span class="kw1">class</span> charT, <span class="kw1">class</span> traits, <span class="kw1">class</span> Allocator<span class="sy1">&gt;</span>
        basic_string<span class="sy1">&lt;</span>charT,traits,Allocator<span class="sy1">&gt;</span>
            operator<span class="sy2">+</span><span class="br0">(</span>charT lhs, basic_string<span class="sy1">&lt;</span>charT,traits,Allocator<span class="sy1">&gt;</span><span class="sy3">&amp;&amp;</span> rhs<span class="br0">)</span><span class="sy4">;</span>
    <span class="kw1">template</span><span class="sy1">&lt;</span><span class="kw1">class</span> charT, <span class="kw1">class</span> traits, <span class="kw1">class</span> Allocator<span class="sy1">&gt;</span>
        basic_string<span class="sy1">&lt;</span>charT,traits,Allocator<span class="sy1">&gt;</span>
            operator<span class="sy2">+</span><span class="br0">(</span><span class="kw4">const</span> basic_string<span class="sy1">&lt;</span>charT,traits,Allocator<span class="sy1">&gt;</span><span class="sy3">&amp;</span> lhs,
                    <span class="kw4">const</span> charT<span class="sy2">*</span> rhs<span class="br0">)</span><span class="sy4">;</span>
    <span class="kw1">template</span><span class="sy1">&lt;</span><span class="kw1">class</span> charT, <span class="kw1">class</span> traits, <span class="kw1">class</span> Allocator<span class="sy1">&gt;</span>
        basic_string<span class="sy1">&lt;</span>charT,traits,Allocator<span class="sy1">&gt;</span>
            operator<span class="sy2">+</span><span class="br0">(</span>basic_string<span class="sy1">&lt;</span>charT,traits,Allocator<span class="sy1">&gt;</span><span class="sy3">&amp;&amp;</span> lhs,
                    <span class="kw4">const</span> charT<span class="sy2">*</span> rhs<span class="br0">)</span><span class="sy4">;</span>
    <span class="kw1">template</span><span class="sy1">&lt;</span><span class="kw1">class</span> charT, <span class="kw1">class</span> traits, <span class="kw1">class</span> Allocator<span class="sy1">&gt;</span>
        basic_string<span class="sy1">&lt;</span>charT,traits,Allocator<span class="sy1">&gt;</span>
            operator<span class="sy2">+</span><span class="br0">(</span><span class="kw4">const</span> basic_string<span class="sy1">&lt;</span>charT,traits,Allocator<span class="sy1">&gt;</span><span class="sy3">&amp;</span> lhs, charT rhs<span class="br0">)</span><span class="sy4">;</span>
    <span class="kw1">template</span><span class="sy1">&lt;</span><span class="kw1">class</span> charT, <span class="kw1">class</span> traits, <span class="kw1">class</span> Allocator<span class="sy1">&gt;</span>
        basic_string<span class="sy1">&lt;</span>charT,traits,Allocator<span class="sy1">&gt;</span>
            operator<span class="sy2">+</span><span class="br0">(</span>basic_string<span class="sy1">&lt;</span>charT,traits,Allocator<span class="sy1">&gt;</span><span class="sy3">&amp;&amp;</span> lhs, charT rhs<span class="br0">)</span><span class="sy4">;</span>
 
    <span class="kw1">template</span><span class="sy1">&lt;</span><span class="kw1">class</span> charT, <span class="kw1">class</span> traits, <span class="kw1">class</span> Allocator<span class="sy1">&gt;</span>
        <span class="kw4">bool</span> operator<span class="sy1">==</span><span class="br0">(</span><span class="kw4">const</span> basic_string<span class="sy1">&lt;</span>charT,traits,Allocator<span class="sy1">&gt;</span><span class="sy3">&amp;</span> lhs,
            <span class="kw4">const</span> basic_string<span class="sy1">&lt;</span>charT,traits,Allocator<span class="sy1">&gt;</span><span class="sy3">&amp;</span> rhs<span class="br0">)</span><span class="sy4">;</span>
    <span class="kw1">template</span><span class="sy1">&lt;</span><span class="kw1">class</span> charT, <span class="kw1">class</span> traits, <span class="kw1">class</span> Allocator<span class="sy1">&gt;</span>
        <span class="kw4">bool</span> operator<span class="sy1">==</span><span class="br0">(</span><span class="kw4">const</span> charT<span class="sy2">*</span> lhs,
                        <span class="kw4">const</span> basic_string<span class="sy1">&lt;</span>charT,traits,Allocator<span class="sy1">&gt;</span><span class="sy3">&amp;</span> rhs<span class="br0">)</span><span class="sy4">;</span>
    <span class="kw1">template</span><span class="sy1">&lt;</span><span class="kw1">class</span> charT, <span class="kw1">class</span> traits, <span class="kw1">class</span> Allocator<span class="sy1">&gt;</span>
        <span class="kw4">bool</span> operator<span class="sy1">==</span><span class="br0">(</span><span class="kw4">const</span> basic_string<span class="sy1">&lt;</span>charT,traits,Allocator<span class="sy1">&gt;</span><span class="sy3">&amp;</span> lhs
                        <span class="kw4">const</span> charT<span class="sy2">*</span> rhs<span class="br0">)</span><span class="sy4">;</span>
    <span class="kw1">template</span><span class="sy1">&lt;</span><span class="kw1">class</span> charT, <span class="kw1">class</span> traits, <span class="kw1">class</span> Allocator<span class="sy1">&gt;</span>
        <span class="kw4">bool</span> operator<span class="sy3">!</span><span class="sy1">=</span><span class="br0">(</span><span class="kw4">const</span> basic_string<span class="sy1">&lt;</span>charT,traits,Allocator<span class="sy1">&gt;</span><span class="sy3">&amp;</span> lhs,
                        <span class="kw4">const</span> basic_string<span class="sy1">&lt;</span>charT,traits,Allocator<span class="sy1">&gt;</span><span class="sy3">&amp;</span> rhs<span class="br0">)</span><span class="sy4">;</span>
    <span class="kw1">template</span><span class="sy1">&lt;</span><span class="kw1">class</span> charT, <span class="kw1">class</span> traits, <span class="kw1">class</span> Allocator<span class="sy1">&gt;</span>
        <span class="kw4">bool</span> operator<span class="sy3">!</span><span class="sy1">=</span><span class="br0">(</span><span class="kw4">const</span> charT<span class="sy2">*</span> lhs,
                        <span class="kw4">const</span> basic_string<span class="sy1">&lt;</span>charT,traits,Allocator<span class="sy1">&gt;</span><span class="sy3">&amp;</span> rhs<span class="br0">)</span><span class="sy4">;</span>
    <span class="kw1">template</span><span class="sy1">&lt;</span><span class="kw1">class</span> charT, <span class="kw1">class</span> traits, <span class="kw1">class</span> Allocator<span class="sy1">&gt;</span>
        <span class="kw4">bool</span> operator<span class="sy3">!</span><span class="sy1">=</span><span class="br0">(</span><span class="kw4">const</span> basic_string<span class="sy1">&lt;</span>charT,traits,Allocator<span class="sy1">&gt;</span><span class="sy3">&amp;</span> lhs,
                        <span class="kw4">const</span> charT<span class="sy2">*</span> rhs<span class="br0">)</span><span class="sy4">;</span>
 
    <span class="kw1">template</span><span class="sy1">&lt;</span><span class="kw1">class</span> charT, <span class="kw1">class</span> traits, <span class="kw1">class</span> Allocator<span class="sy1">&gt;</span>
        <span class="kw4">bool</span> operator<span class="sy1">&lt;</span> <span class="br0">(</span><span class="kw4">const</span> basic_string<span class="sy1">&lt;</span>charT,traits,Allocator<span class="sy1">&gt;</span><span class="sy3">&amp;</span> lhs,
                        <span class="kw4">const</span> basic_string<span class="sy1">&lt;</span>charT,traits,Allocator<span class="sy1">&gt;</span><span class="sy3">&amp;</span> rhs<span class="br0">)</span><span class="sy4">;</span>
    <span class="kw1">template</span><span class="sy1">&lt;</span><span class="kw1">class</span> charT, <span class="kw1">class</span> traits, <span class="kw1">class</span> Allocator<span class="sy1">&gt;</span>
        <span class="kw4">bool</span> operator<span class="sy1">&lt;</span> <span class="br0">(</span><span class="kw4">const</span> basic_string<span class="sy1">&lt;</span>charT,traits,Allocator<span class="sy1">&gt;</span><span class="sy3">&amp;</span> lhs,
                        <span class="kw4">const</span> charT<span class="sy2">*</span> rhs<span class="br0">)</span><span class="sy4">;</span>
    <span class="kw1">template</span><span class="sy1">&lt;</span><span class="kw1">class</span> charT, <span class="kw1">class</span> traits, <span class="kw1">class</span> Allocator<span class="sy1">&gt;</span>
        <span class="kw4">bool</span> operator<span class="sy1">&lt;</span> <span class="br0">(</span><span class="kw4">const</span> charT<span class="sy2">*</span> lhs,
            <span class="kw4">const</span> basic_string<span class="sy1">&lt;</span>charT,traits,Allocator<span class="sy1">&gt;</span><span class="sy3">&amp;</span> rhs<span class="br0">)</span><span class="sy4">;</span>
 
    <span class="kw1">template</span><span class="sy1">&lt;</span><span class="kw1">class</span> charT, <span class="kw1">class</span> traits, <span class="kw1">class</span> Allocator<span class="sy1">&gt;</span>
        <span class="kw4">bool</span> operator<span class="sy1">&gt;</span> <span class="br0">(</span><span class="kw4">const</span> basic_string<span class="sy1">&lt;</span>charT,traits,Allocator<span class="sy1">&gt;</span><span class="sy3">&amp;</span> lhs,
                        <span class="kw4">const</span> basic_string<span class="sy1">&lt;</span>charT,traits,Allocator<span class="sy1">&gt;</span><span class="sy3">&amp;</span> rhs<span class="br0">)</span><span class="sy4">;</span>
    <span class="kw1">template</span><span class="sy1">&lt;</span><span class="kw1">class</span> charT, <span class="kw1">class</span> traits, <span class="kw1">class</span> Allocator<span class="sy1">&gt;</span>
        <span class="kw4">bool</span> operator<span class="sy1">&gt;</span> <span class="br0">(</span><span class="kw4">const</span> basic_string<span class="sy1">&lt;</span>charT,traits,Allocator<span class="sy1">&gt;</span><span class="sy3">&amp;</span> lhs,
                        <span class="kw4">const</span> charT<span class="sy2">*</span> rhs<span class="br0">)</span><span class="sy4">;</span>
    <span class="kw1">template</span><span class="sy1">&lt;</span><span class="kw1">class</span> charT, <span class="kw1">class</span> traits, <span class="kw1">class</span> Allocator<span class="sy1">&gt;</span>
        <span class="kw4">bool</span> operator<span class="sy1">&gt;</span> <span class="br0">(</span><span class="kw4">const</span> charT<span class="sy2">*</span> lhs,
                        <span class="kw4">const</span> basic_string<span class="sy1">&lt;</span>charT,traits,Allocator<span class="sy1">&gt;</span><span class="sy3">&amp;</span> rhs<span class="br0">)</span><span class="sy4">;</span>
 
    <span class="kw1">template</span><span class="sy1">&lt;</span><span class="kw1">class</span> charT, <span class="kw1">class</span> traits, <span class="kw1">class</span> Allocator<span class="sy1">&gt;</span>
        <span class="kw4">bool</span> operator<span class="sy1">&lt;=</span><span class="br0">(</span><span class="kw4">const</span> basic_string<span class="sy1">&lt;</span>charT,traits,Allocator<span class="sy1">&gt;</span><span class="sy3">&amp;</span> lhs,
                        <span class="kw4">const</span> basic_string<span class="sy1">&lt;</span>charT,traits,Allocator<span class="sy1">&gt;</span><span class="sy3">&amp;</span> rhs<span class="br0">)</span><span class="sy4">;</span>
    <span class="kw1">template</span><span class="sy1">&lt;</span><span class="kw1">class</span> charT, <span class="kw1">class</span> traits, <span class="kw1">class</span> Allocator<span class="sy1">&gt;</span>
        <span class="kw4">bool</span> operator<span class="sy1">&lt;=</span><span class="br0">(</span><span class="kw4">const</span> basic_string<span class="sy1">&lt;</span>charT,traits,Allocator<span class="sy1">&gt;</span><span class="sy3">&amp;</span> lhs,
                        <span class="kw4">const</span> charT<span class="sy2">*</span> rhs<span class="br0">)</span><span class="sy4">;</span>
    <span class="kw1">template</span><span class="sy1">&lt;</span><span class="kw1">class</span> charT, <span class="kw1">class</span> traits, <span class="kw1">class</span> Allocator<span class="sy1">&gt;</span>
        <span class="kw4">bool</span> operator<span class="sy1">&lt;=</span><span class="br0">(</span><span class="kw4">const</span> charT<span class="sy2">*</span> lhs,
                        <span class="kw4">const</span> basic_string<span class="sy1">&lt;</span>charT,traits,Allocator<span class="sy1">&gt;</span><span class="sy3">&amp;</span> rhs<span class="br0">)</span><span class="sy4">;</span>
    <span class="kw1">template</span><span class="sy1">&lt;</span><span class="kw1">class</span> charT, <span class="kw1">class</span> traits, <span class="kw1">class</span> Allocator<span class="sy1">&gt;</span>
        <span class="kw4">bool</span> operator<span class="sy1">&gt;=</span><span class="br0">(</span><span class="kw4">const</span> basic_string<span class="sy1">&lt;</span>charT,traits,Allocator<span class="sy1">&gt;</span><span class="sy3">&amp;</span> lhs,
                        <span class="kw4">const</span> basic_string<span class="sy1">&lt;</span>charT,traits,Allocator<span class="sy1">&gt;</span><span class="sy3">&amp;</span> rhs<span class="br0">)</span><span class="sy4">;</span>
    <span class="kw1">template</span><span class="sy1">&lt;</span><span class="kw1">class</span> charT, <span class="kw1">class</span> traits, <span class="kw1">class</span> Allocator<span class="sy1">&gt;</span>
        <span class="kw4">bool</span> operator<span class="sy1">&gt;=</span><span class="br0">(</span><span class="kw4">const</span> basic_string<span class="sy1">&lt;</span>charT,traits,Allocator<span class="sy1">&gt;</span><span class="sy3">&amp;</span> lhs,
                        <span class="kw4">const</span> charT<span class="sy2">*</span> rhs<span class="br0">)</span><span class="sy4">;</span>
    <span class="kw1">template</span><span class="sy1">&lt;</span><span class="kw1">class</span> charT, <span class="kw1">class</span> traits, <span class="kw1">class</span> Allocator<span class="sy1">&gt;</span>
        <span class="kw4">bool</span> operator<span class="sy1">&gt;=</span><span class="br0">(</span><span class="kw4">const</span> charT<span class="sy2">*</span> lhs,
                        <span class="kw4">const</span> basic_string<span class="sy1">&lt;</span>charT,traits,Allocator<span class="sy1">&gt;</span><span class="sy3">&amp;</span> rhs<span class="br0">)</span><span class="sy4">;</span>
 
    <span class="co1">// swap:</span>
    <span class="kw1">template</span><span class="sy1">&lt;</span><span class="kw1">class</span> charT, <span class="kw1">class</span> traits, <span class="kw1">class</span> Allocator<span class="sy1">&gt;</span>
        <span class="kw4">void</span> swap<span class="br0">(</span>basic_string<span class="sy1">&lt;</span>charT,traits,Allocator<span class="sy1">&gt;</span><span class="sy3">&amp;</span> lhs,
                basic_string<span class="sy1">&lt;</span>charT,traits,Allocator<span class="sy1">&gt;</span><span class="sy3">&amp;</span> rhs<span class="br0">)</span><span class="sy4">;</span>
 
    <span class="co1">// inserters and extractors:</span>
    <span class="kw1">template</span><span class="sy1">&lt;</span><span class="kw1">class</span> charT, <span class="kw1">class</span> traits, <span class="kw1">class</span> Allocator<span class="sy1">&gt;</span>
        basic_istream<span class="sy1">&lt;</span>charT,traits<span class="sy1">&gt;</span><span class="sy3">&amp;</span>
            operator<span class="sy1">&gt;&gt;</span><span class="br0">(</span>basic_istream<span class="sy1">&lt;</span>charT,traits<span class="sy1">&gt;</span><span class="sy3">&amp;&amp;</span> is,
                    basic_string<span class="sy1">&lt;</span>charT,traits,Allocator<span class="sy1">&gt;</span><span class="sy3">&amp;</span> str<span class="br0">)</span><span class="sy4">;</span>
    <span class="kw1">template</span><span class="sy1">&lt;</span><span class="kw1">class</span> charT, <span class="kw1">class</span> traits, <span class="kw1">class</span> Allocator<span class="sy1">&gt;</span>
        basic_ostream<span class="sy1">&lt;</span>charT, traits<span class="sy1">&gt;</span><span class="sy3">&amp;</span>
            operator<span class="sy1">&lt;&lt;</span><span class="br0">(</span>basic_ostream<span class="sy1">&lt;</span>charT, traits<span class="sy1">&gt;</span><span class="sy3">&amp;&amp;</span> os,
                    <span class="kw4">const</span> basic_string<span class="sy1">&lt;</span>charT,traits,Allocator<span class="sy1">&gt;</span><span class="sy3">&amp;</span> str<span class="br0">)</span><span class="sy4">;</span>
    <span class="kw1">template</span><span class="sy1">&lt;</span><span class="kw1">class</span> charT, <span class="kw1">class</span> traits, <span class="kw1">class</span> Allocator<span class="sy1">&gt;</span>
        basic_istream<span class="sy1">&lt;</span>charT,traits<span class="sy1">&gt;</span><span class="sy3">&amp;</span>
            getline<span class="br0">(</span>basic_istream<span class="sy1">&lt;</span>charT,traits<span class="sy1">&gt;</span><span class="sy3">&amp;</span> is,
                    basic_string<span class="sy1">&lt;</span>charT,traits,Allocator<span class="sy1">&gt;</span><span class="sy3">&amp;</span> str,
                    charT delim<span class="br0">)</span><span class="sy4">;</span>
    <span class="kw1">template</span><span class="sy1">&lt;</span><span class="kw1">class</span> charT, <span class="kw1">class</span> traits, <span class="kw1">class</span> Allocator<span class="sy1">&gt;</span>
        basic_istream<span class="sy1">&lt;</span>charT,traits<span class="sy1">&gt;</span><span class="sy3">&amp;</span>
            getline<span class="br0">(</span>basic_istream<span class="sy1">&lt;</span>charT,traits<span class="sy1">&gt;</span><span class="sy3">&amp;&amp;</span> is,
                    basic_string<span class="sy1">&lt;</span>charT,traits,Allocator<span class="sy1">&gt;</span><span class="sy3">&amp;</span> str,
                    charT delim<span class="br0">)</span><span class="sy4">;</span>
    <span class="kw1">template</span><span class="sy1">&lt;</span><span class="kw1">class</span> charT, <span class="kw1">class</span> traits, <span class="kw1">class</span> Allocator<span class="sy1">&gt;</span>
        basic_istream<span class="sy1">&lt;</span>charT,traits<span class="sy1">&gt;</span><span class="sy3">&amp;</span>
            getline<span class="br0">(</span>basic_istream<span class="sy1">&lt;</span>charT,traits<span class="sy1">&gt;</span><span class="sy3">&amp;</span> is,
                    basic_string<span class="sy1">&lt;</span>charT,traits,Allocator<span class="sy1">&gt;</span><span class="sy3">&amp;</span> str<span class="br0">)</span><span class="sy4">;</span>
    <span class="kw1">template</span><span class="sy1">&lt;</span><span class="kw1">class</span> charT, <span class="kw1">class</span> traits, <span class="kw1">class</span> Allocator<span class="sy1">&gt;</span>
        basic_istream<span class="sy1">&lt;</span>charT,traits<span class="sy1">&gt;</span><span class="sy3">&amp;</span>
            getline<span class="br0">(</span>basic_istream<span class="sy1">&lt;</span>charT,traits<span class="sy1">&gt;</span><span class="sy3">&amp;&amp;</span> is,
                    basic_string<span class="sy1">&lt;</span>charT,traits,Allocator<span class="sy1">&gt;</span><span class="sy3">&amp;</span> str<span class="br0">)</span><span class="sy4">;</span>
 
    <span class="co1">// basic_string typedef names</span>
    <span class="kw1">typedef</span> basic_string<span class="sy1">&lt;</span><span class="kw4">char</span><span class="sy1">&gt;</span> string<span class="sy4">;</span>
    <span class="kw1">typedef</span> basic_string<span class="sy1">&lt;</span><span class="kw4">char16_t</span><span class="sy1">&gt;</span> u16string<span class="sy4">;</span>
    <span class="kw1">typedef</span> basic_string<span class="sy1">&lt;</span><span class="kw4">char32_t</span><span class="sy1">&gt;</span> u32string<span class="sy4">;</span>
    <span class="kw1">typedef</span> basic_string<span class="sy1">&lt;</span><span class="kw4">wchar_t</span><span class="sy1">&gt;</span> wstring<span class="sy4">;</span>
 
    <span class="co1">// numeric conversions:</span>
    <span class="kw4">int</span> stoi<span class="br0">(</span><span class="kw4">const</span> string<span class="sy3">&amp;</span> str, size_t <span class="sy2">*</span>idx <span class="sy1">=</span> <span class="nu0">0</span>, <span class="kw4">int</span> base <span class="sy1">=</span> <span class="nu0">10</span><span class="br0">)</span><span class="sy4">;</span>
    <span class="kw4">long</span> stol<span class="br0">(</span><span class="kw4">const</span> string<span class="sy3">&amp;</span> str, size_t <span class="sy2">*</span>idx <span class="sy1">=</span> <span class="nu0">0</span>, <span class="kw4">int</span> base <span class="sy1">=</span> <span class="nu0">10</span><span class="br0">)</span><span class="sy4">;</span>
    <span class="kw4">unsigned</span> <span class="kw4">long</span> stoul<span class="br0">(</span><span class="kw4">const</span> string<span class="sy3">&amp;</span> str, size_t <span class="sy2">*</span>idx <span class="sy1">=</span> <span class="nu0">0</span>, <span class="kw4">int</span> base <span class="sy1">=</span> <span class="nu0">10</span><span class="br0">)</span><span class="sy4">;</span>
    <span class="kw4">long</span> <span class="kw4">long</span> stoll<span class="br0">(</span><span class="kw4">const</span> string<span class="sy3">&amp;</span> str, size_t <span class="sy2">*</span>idx <span class="sy1">=</span> <span class="nu0">0</span>, <span class="kw4">int</span> base <span class="sy1">=</span> <span class="nu0">10</span><span class="br0">)</span><span class="sy4">;</span>
    <span class="kw4">unsigned</span> <span class="kw4">long</span> <span class="kw4">long</span> stoull<span class="br0">(</span><span class="kw4">const</span> string<span class="sy3">&amp;</span> str, size_t <span class="sy2">*</span>idx <span class="sy1">=</span> <span class="nu0">0</span>, <span class="kw4">int</span> base <span class="sy1">=</span> <span class="nu0">10</span><span class="br0">)</span><span class="sy4">;</span>
    <span class="kw4">float</span> stof<span class="br0">(</span><span class="kw4">const</span> string<span class="sy3">&amp;</span> str, size_t <span class="sy2">*</span>idx <span class="sy1">=</span> <span class="nu0">0</span><span class="br0">)</span><span class="sy4">;</span>
    <span class="kw4">double</span> stod<span class="br0">(</span><span class="kw4">const</span> string<span class="sy3">&amp;</span> str, size_t <span class="sy2">*</span>idx <span class="sy1">=</span> <span class="nu0">0</span><span class="br0">)</span><span class="sy4">;</span>
    <span class="kw4">long</span> <span class="kw4">double</span> stold<span class="br0">(</span><span class="kw4">const</span> string<span class="sy3">&amp;</span> str, size_t <span class="sy2">*</span>idx <span class="sy1">=</span> <span class="nu0">0</span><span class="br0">)</span><span class="sy4">;</span>
    string to_string<span class="br0">(</span><span class="kw4">int</span> val<span class="br0">)</span><span class="sy4">;</span>
    string to_string<span class="br0">(</span><span class="kw4">unsigned</span> val<span class="br0">)</span><span class="sy4">;</span>
    string to_string<span class="br0">(</span><span class="kw4">long</span> val<span class="br0">)</span><span class="sy4">;</span>
    string to_string<span class="br0">(</span><span class="kw4">unsigned</span> <span class="kw4">long</span> val<span class="br0">)</span><span class="sy4">;</span>
    string to_string<span class="br0">(</span><span class="kw4">long</span> <span class="kw4">long</span> val<span class="br0">)</span><span class="sy4">;</span>
    string to_string<span class="br0">(</span><span class="kw4">unsigned</span> <span class="kw4">long</span> <span class="kw4">long</span> val<span class="br0">)</span><span class="sy4">;</span>
    string to_string<span class="br0">(</span><span class="kw4">float</span> val<span class="br0">)</span><span class="sy4">;</span>
    string to_string<span class="br0">(</span><span class="kw4">double</span> val<span class="br0">)</span><span class="sy4">;</span>
    string to_string<span class="br0">(</span><span class="kw4">long</span> <span class="kw4">double</span> val<span class="br0">)</span><span class="sy4">;</span>
 
    <span class="kw4">int</span> stoi<span class="br0">(</span><span class="kw4">const</span> wstring<span class="sy3">&amp;</span> str, size_t <span class="sy2">*</span>idx <span class="sy1">=</span> <span class="nu0">0</span>, <span class="kw4">int</span> base <span class="sy1">=</span> <span class="nu0">10</span><span class="br0">)</span><span class="sy4">;</span>
    <span class="kw4">long</span> stol<span class="br0">(</span><span class="kw4">const</span> wstring<span class="sy3">&amp;</span> str, size_t <span class="sy2">*</span>idx <span class="sy1">=</span> <span class="nu0">0</span>, <span class="kw4">int</span> base <span class="sy1">=</span> <span class="nu0">10</span><span class="br0">)</span><span class="sy4">;</span>
    <span class="kw4">unsigned</span> <span class="kw4">long</span> stoul<span class="br0">(</span><span class="kw4">const</span> wstring<span class="sy3">&amp;</span> str, size_t <span class="sy2">*</span>idx <span class="sy1">=</span> <span class="nu0">0</span>, <span class="kw4">int</span> base <span class="sy1">=</span> <span class="nu0">10</span><span class="br0">)</span><span class="sy4">;</span>
    <span class="kw4">long</span> <span class="kw4">long</span> stoll<span class="br0">(</span><span class="kw4">const</span> wstring<span class="sy3">&amp;</span> str, size_t <span class="sy2">*</span>idx <span class="sy1">=</span> <span class="nu0">0</span>, <span class="kw4">int</span> base <span class="sy1">=</span> <span class="nu0">10</span><span class="br0">)</span><span class="sy4">;</span>
    <span class="kw4">unsigned</span> <span class="kw4">long</span> <span class="kw4">long</span> stoull<span class="br0">(</span><span class="kw4">const</span> wstring<span class="sy3">&amp;</span> str, size_t <span class="sy2">*</span>idx <span class="sy1">=</span> <span class="nu0">0</span>, <span class="kw4">int</span> base <span class="sy1">=</span> <span class="nu0">10</span><span class="br0">)</span><span class="sy4">;</span>
    <span class="kw4">float</span> stof<span class="br0">(</span><span class="kw4">const</span> wstring<span class="sy3">&amp;</span> str, size_t <span class="sy2">*</span>idx <span class="sy1">=</span> <span class="nu0">0</span><span class="br0">)</span><span class="sy4">;</span>
    <span class="kw4">double</span> stod<span class="br0">(</span><span class="kw4">const</span> wstring<span class="sy3">&amp;</span> str, size_t <span class="sy2">*</span>idx <span class="sy1">=</span> <span class="nu0">0</span><span class="br0">)</span><span class="sy4">;</span>
    <span class="kw4">long</span> <span class="kw4">double</span> stold<span class="br0">(</span><span class="kw4">const</span> wstring<span class="sy3">&amp;</span> str, size_t <span class="sy2">*</span>idx <span class="sy1">=</span> <span class="nu0">0</span><span class="br0">)</span><span class="sy4">;</span>
    wstring to_wstring<span class="br0">(</span><span class="kw4">int</span> val<span class="br0">)</span><span class="sy4">;</span>
    wstring to_wstring<span class="br0">(</span><span class="kw4">unsigned</span> val<span class="br0">)</span><span class="sy4">;</span>
    wstring to_wstring<span class="br0">(</span><span class="kw4">long</span> val<span class="br0">)</span><span class="sy4">;</span>
    wstring to_wstring<span class="br0">(</span><span class="kw4">unsigned</span> <span class="kw4">long</span> val<span class="br0">)</span><span class="sy4">;</span>
    wstring to_wstring<span class="br0">(</span><span class="kw4">long</span> <span class="kw4">long</span> val<span class="br0">)</span><span class="sy4">;</span>
    wstring to_wstring<span class="br0">(</span><span class="kw4">unsigned</span> <span class="kw4">long</span> <span class="kw4">long</span> val<span class="br0">)</span><span class="sy4">;</span>
    wstring to_wstring<span class="br0">(</span><span class="kw4">float</span> val<span class="br0">)</span><span class="sy4">;</span>
    wstring to_wstring<span class="br0">(</span><span class="kw4">double</span> val<span class="br0">)</span><span class="sy4">;</span>
    wstring to_wstring<span class="br0">(</span><span class="kw4">long</span> <span class="kw4">double</span> val<span class="br0">)</span><span class="sy4">;</span>
 
    <span class="co1">// hash support:</span>
    <span class="kw1">template</span> <span class="sy1">&lt;</span><span class="kw1">class</span> T<span class="sy1">&gt;</span> <span class="kw1">struct</span> hash<span class="sy4">;</span>
    <span class="kw1">template</span> <span class="sy1">&lt;&gt;</span> <span class="kw1">struct</span> hash<span class="sy1">&lt;</span>string<span class="sy1">&gt;</span><span class="sy4">;</span>
    <span class="kw1">template</span> <span class="sy1">&lt;&gt;</span> <span class="kw1">struct</span> hash<span class="sy1">&lt;</span>u16string<span class="sy1">&gt;</span><span class="sy4">;</span>
    <span class="kw1">template</span> <span class="sy1">&lt;&gt;</span> <span class="kw1">struct</span> hash<span class="sy1">&lt;</span>u32string<span class="sy1">&gt;</span><span class="sy4">;</span>
    <span class="kw1">template</span> <span class="sy1">&lt;&gt;</span> <span class="kw1">struct</span> hash<span class="sy1">&lt;</span>wstring<span class="sy1">&gt;</span><span class="sy4">;</span>
 
<span class="br0">}</span> <span class="co1">// namespace std</span></pre></div></div>

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